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Table 2 The relationship between maternal vitamin D intake and status with self-reported asthma at 5-years

From: Atopic heredity modifies the association between maternal vitamin D status in pregnancy and the risk of atopic disease in childhood: an observational study

 

No reported atopic heredity

Reported atopic heredity

OR

95% CI

P-value

OR

95% CI

P-value

T3 dietary vitamin D intake (µg/day)

0.925

0.775–1.105

0.389

0.936

0.740–1.184

0.582

Supplemental vitamin D intake in T1 and/or T3 (yes)

1.095

0.567–2.114

0.787

0.739

0.284–1.920

0.535

T1 25OHD (nmol/L)

1.015

0.999–1.030

0.070

0.981

0.956–1.008

0.116

T1 25OHD (nmol/L)

      

   > 75 (ref)

1.0

  

1.0

  

   < 50

0.385

0.135–1.099

0.074

0.907

0.155–5.287

0.913

  50–75

0.271

0.127–0.580

0.001

1.368

0.519–3.606

0.526

T3 25OHD (nmol/L)

1.014

1.002–1.026

0.022

0.994

0.975–1.014

0.567

T3 25OHD (nmol/L)

      

   > 75 (ref)

1.0

  

1.0

  

   < 50

0.455

0.097–2.137

0.318

0.502

0.056–4.502

0.538

  50–75

0.579

0.262–1.279

0.177

1.218

0.450–3.295

0.698

  1. T1 early pregnancy, T3 late pregnancy, 25OHD 25-hydroxyvitamin D, OR Odds ratio, CI Confidence interval, ref reference category
  2. Adjusted for maternal BMI in T1, level of education (university level, yes/no), ethnicity (northern Europe, yes/no), delivery mode (vaginal or Caesarean section) and tobacco use by either mother or other caregiver during pregnancy